The present invention relates generally to the amphiphilic polyelectrolyte, poly(2-ethylacrylic acid) and covalently bonded lipids to generate Lipo-PEAA. These Lipo-PEAA are then used to make pH-sensitive liposomes which become unstable, permeable or fusogenic with certain pH changes. In addition, this invention generally describes methods for delivering therapeutic compounds and drugs to target cells by administering to a host the pH-sensitive liposomes of the present invention.
本发明通常涉及两性聚电解质,聚(
2-乙基丙烯酸)和共价结合的脂质以生成Lipo-
PEAA。然后使用这些Lipo-
PEAA制造pH敏感的脂质体,这些脂质体在特定pH变化下变得不稳定、渗透或与细胞融合。此外,本发明通常描述了通过向宿主施用本发明的pH敏感脂质体来向目标细胞传递治疗化合物和药物的方法。